Car seat base



FIG. 1 is a perspective view of a car seat base showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a perspective view of the design in a state of use with brokenline environment;

FIG. 9 is another perspective view of the design in a state of use withbroken line environment;

FIG. 10 is still another perspective view of the design in a state ofuse with broken line environment; and,

FIG. 11 is a perspective view of the design with broken lineenvironment.

The dashed broken lines depict portions of a car seat base in which thedesign is embodied that form no part of the claimed design, andillustrate environment structures that form no part of the claimeddesign. The dot-dash broken lines are for defining the bounds of theclaimed design only and form no part of the claimed design.

CLAIM The ornamental design for a car seat base, as shown and described.